:root {
  --bg: #ffffff;
  --bg-soft: #fafbfe;
  --panel: #ffffff;
  --text: #22252b;
  --muted: #6f7784;
  --line: #e8ebf0;
  --line-strong: #d7dde7;
  --brand: #2962c8;
  --brand-dark: #153b84;
  --accent: #f1f5ff;
  --shadow: 0 20px 60px rgba(20, 28, 45, 0.08);
  --radius: 20px;
  --radius-sm: 12px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select {
  font: inherit;
}
button { cursor: pointer; }

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(232,235,240,0.85);
}
.header-top {
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.header-top .container {
  display: flex;
  justify-content: flex-end;
  gap: 18px;
  align-items: center;
  min-height: 42px;
  font-size: 12px;
  color: var(--muted);
}
.header-top a:hover { color: var(--brand); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  gap: 24px;
}
.logo-wrap {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.logo-wrap img {
  width: 148px;
  height: auto;
}
.logo-copy {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--muted);
  text-transform: uppercase;
  white-space: nowrap;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  letter-spacing: .08em;
}
.site-nav a,
.nav-actions button {
  position: relative;
  color: #737b87;
  background: none;
  border: 0;
  padding: 0;
}
.site-nav a::after,
.nav-actions button::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 100%;
  height: 1px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s ease;
}
.site-nav a:hover,
.site-nav a.active,
.nav-actions button:hover { color: var(--text); }
.site-nav a:hover::after,
.site-nav a.active::after,
.nav-actions button:hover::after { transform: scaleX(1); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}
.icon-button {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0;
}
.icon-button svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}
.mobile-toggle { display: none; }
.mobile-drawer {
  display: none;
  border-top: 1px solid var(--line);
  background: #fff;
}
.mobile-drawer nav {
  display: flex;
  flex-direction: column;
  padding: 12px 20px 24px;
}
.mobile-drawer a,
.mobile-drawer button {
  padding: 14px 0;
  border: 0;
  background: none;
  text-align: left;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.search-overlay,
.lightbox {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15, 20, 30, 0.55);
  z-index: 80;
}
.search-overlay.active,
.lightbox.active { display: flex; }
.search-panel,
.lightbox-panel {
  width: min(100%, 880px);
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow);
}
.search-panel {
  padding: 28px;
}
.search-head,
.lightbox-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.search-head h2,
.lightbox-head h2,
.section-headline,
.page-hero h1,
.utility-box h1 {
  margin: 0;
  font-family: "Cormorant Garamond", "Noto Serif JP", serif;
  letter-spacing: .02em;
}
.search-field {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 16px 20px;
  font-size: 16px;
  outline: none;
}
.search-field:focus,
.input:focus,
textarea:focus,
select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(41,98,200,.1);
  outline: none;
}
.search-links {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.search-link {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px 18px;
  transition: .2s ease;
}
.search-link:hover {
  border-color: rgba(41,98,200,.28);
  transform: translateY(-2px);
}
.search-link strong { display: block; margin-bottom: 6px; }
.search-link span { color: var(--muted); font-size: 14px; }

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-slider {
  position: relative;
}
.slide {
  position: relative;
  display: none;
  min-height: clamp(460px, 66vw, 820px);
}
.slide.active { display: block; }
.slide > img {
  width: 100%;
  height: clamp(460px, 66vw, 820px);
  object-fit: cover;
}
.slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.82) 0%, rgba(255,255,255,.52) 42%, rgba(255,255,255,.08) 100%);
}
.slide-caption {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  z-index: 1;
}
.hero-copy {
  max-width: 620px;
  padding: 20px 0;
}
.eyebrow,
.section-title {
  display: inline-block;
  color: #8e7962;
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 18px 0 14px;
  font-family: "Cormorant Garamond", "Noto Serif JP", serif;
  font-size: clamp(40px, 5.5vw, 74px);
  line-height: 1.06;
  letter-spacing: .01em;
}
.lead {
  margin: 0 0 16px;
  font-size: clamp(18px, 2vw, 24px);
  color: #2c2f36;
}
.sub {
  margin: 0;
  max-width: 560px;
  color: #4e5663;
}
.hero-actions,
.button-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: .2s ease;
  font-weight: 600;
}
.btn.primary {
  background: var(--brand);
  color: #fff;
}
.btn.primary:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
}
.btn.secondary {
  background: rgba(255,255,255,.7);
  border-color: rgba(34,37,43,.12);
}
.btn.secondary:hover { background: #fff; }

.slider-controls {
  position: absolute;
  inset-inline: 0;
  bottom: 26px;
  z-index: 2;
}
.slider-controls .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.slider-dots {
  display: inline-flex;
  gap: 10px;
}
.slider-dots button {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  border: 0;
  background: rgba(34,37,43,.25);
  padding: 0;
}
.slider-dots button.active { background: var(--brand); }
.slider-arrows {
  display: inline-flex;
  gap: 10px;
}
.slider-arrows button {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid rgba(34,37,43,.12);
  background: rgba(255,255,255,.82);
}

.feature-strip {
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 26px 0;
}
.feature-item {
  padding: 0 10px;
  border-left: 1px solid var(--line);
}
.feature-item:first-child { border-left: 0; }
.feature-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
}
.feature-item span {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 92px 0;
}
.section.compact { padding: 72px 0; }
.section-copy {
  max-width: 760px;
  color: var(--muted);
  margin: 18px 0 0;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 40px;
  align-items: center;
}
.about-split {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 34px;
  align-items: start;
  margin-top: 34px;
}
.about-stack,
.about-text,
.note-box,
.gallery-card,
.info-card,
.process-card,
.contact-card,
.form-card,
.utility-box,
.highlight-card,
.cta-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.about-stack,
.about-text,
.contact-card,
.form-card,
.utility-box { overflow: hidden; }
.about-card.image img,
.highlight-card img,
.gallery-card img,
.contact-card .map img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-text {
  padding: 28px;
}
.about-list {
  margin: 20px 0 0;
  padding-left: 20px;
}
.note-box {
  margin-top: 24px;
  padding: 18px 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
}

.showcase-grid,
.gallery-grid,
.info-grid,
.process-grid,
.highlight-grid {
  display: grid;
  gap: 22px;
}
.showcase-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 34px;
}
.gallery-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}
.gallery-card {
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(20, 28, 45, 0.12);
}
.gallery-card .body {
  padding: 20px;
}
.gallery-card h3 { margin: 0 0 8px; font-size: 20px; }
.gallery-card p { margin: 0; color: var(--muted); }
.gallery-card button {
  margin-top: 14px;
  border: 0;
  background: none;
  color: var(--brand);
  padding: 0;
  font-weight: 700;
}

.info-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}
.info-card,
.process-card,
.highlight-card,
.cta-box {
  padding: 26px;
}
.info-card h3,
.process-card h3,
.highlight-card h3,
.cta-box h3 { margin-top: 0; }
.info-card p,
.process-card p,
.highlight-card p,
.cta-box p { margin-bottom: 0; color: var(--muted); }
.process-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 34px; }
.process-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--brand);
  font-weight: 800;
  margin-bottom: 16px;
}
.highlight-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 34px;
}
.highlight-card img { aspect-ratio: 4 / 3; }
.highlight-card .body { padding: 22px; }

.page-hero {
  padding: 78px 0 48px;
  background: linear-gradient(180deg, #fff 0%, #f8fafe 100%);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 {
  font-size: clamp(36px, 5vw, 66px);
  margin: 12px 0 10px;
}
.page-hero p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
}

.filter-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.filter-chip {
  border: 1px solid var(--line-strong);
  background: #fff;
  color: #606875;
  border-radius: 999px;
  padding: 10px 16px;
}
.filter-chip.active,
.filter-chip:hover {
  color: var(--brand);
  border-color: rgba(41,98,200,.35);
  background: var(--accent);
}
.gallery-grid[data-filterable="true"] .gallery-card[data-hidden="true"] { display: none; }
.gallery-card .meta {
  font-size: 12px;
  color: #8a93a1;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.contact-wrap {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 28px;
}
.contact-card .map img {
  aspect-ratio: 14 / 10;
}
.contact-info {
  padding: 26px;
}
.contact-info h2,
.form-card h2 { margin-top: 0; font-size: 32px; }
.contact-list {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}
.contact-list .row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.contact-list strong { color: var(--muted); }
.contact-list p { margin: 0; }
.form-card {
  padding: 28px;
}
.form-intro {
  margin: 0 0 22px;
  color: var(--muted);
}
.form-grid {
  display: grid;
  gap: 14px;
}
.form-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: #fff;
  padding: 15px 16px;
  color: var(--text);
}
textarea { min-height: 180px; resize: vertical; }
.field-note {
  font-size: 13px;
  color: var(--muted);
}
.form-message {
  display: none;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 14px;
}
.form-message.error {
  display: block;
  background: #fff4f4;
  color: #a33636;
  border: 1px solid #f0c7c7;
}
.form-message.success {
  display: block;
  background: #f2faf2;
  color: #2d7d3c;
  border: 1px solid #cfe9d4;
}
.hp-field { position: absolute; left: -9999px; }
.inline-contact {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.inline-contact div {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
}
.inline-contact strong { display: block; margin-bottom: 8px; }
.inline-contact span { color: var(--muted); font-size: 14px; }

.cta-band {
  padding: 0 0 92px;
}
.cta-box {
  background: linear-gradient(120deg, #ffffff 0%, #f5f9ff 100%);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.footer {
  border-top: 1px solid var(--line);
  background: #fff;
}
.footer-inner {
  padding: 30px 0 42px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.footer-brand img { width: 110px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
}
.footer small,
.footer p,
.footer li,
.footer a { color: var(--muted); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  justify-content: flex-end;
}
.footer-list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
}
.footer-list li { margin-bottom: 6px; }

.utility-main {
  min-height: calc(100vh - 180px);
  display: grid;
  place-items: center;
  padding: 60px 0;
  background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}
.utility-box {
  width: min(100%, 760px);
  padding: 40px;
}
.utility-box p { color: var(--muted); }
.utility-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.top-link {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--brand);
  box-shadow: 0 18px 30px rgba(41,98,200,.28);
  z-index: 25;
}

.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

@media (max-width: 1080px) {
  .site-nav,
  .header-top,
  .nav-actions .desktop-only { display: none; }
  .mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #fff;
  }
  .mobile-drawer.open { display: block; }
  .feature-grid,
  .showcase-grid,
  .info-grid,
  .process-grid,
  .gallery-grid,
  .highlight-grid,
  .inline-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid-2,
  .about-split,
  .contact-wrap,
  .footer-grid,
  .cta-box {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
  .contact-list .row { grid-template-columns: 92px 1fr; }
  .footer-nav { justify-content: flex-start; }
}

@media (max-width: 720px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .header-inner { min-height: 76px; }
  .logo-wrap img { width: 128px; }
  .logo-copy { display: none; }
  .hero-copy { max-width: 100%; }
  .slide::after { background: linear-gradient(180deg, rgba(255,255,255,.84) 0%, rgba(255,255,255,.45) 48%, rgba(255,255,255,.18) 100%); }
  .slide-caption { align-items: flex-end; }
  .hero-copy { padding-bottom: 84px; }
  .slider-controls .container {
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 12px;
  }
  .feature-grid,
  .showcase-grid,
  .info-grid,
  .process-grid,
  .gallery-grid,
  .highlight-grid,
  .inline-contact,
  .form-grid.two,
  .search-links {
    grid-template-columns: 1fr;
  }
  .section { padding: 72px 0; }
  .section.compact { padding: 58px 0; }
  .about-text,
  .form-card,
  .contact-info,
  .process-card,
  .info-card,
  .highlight-card .body,
  .cta-box,
  .utility-box,
  .search-panel { padding: 22px; }
  .contact-list .row { grid-template-columns: 1fr; gap: 6px; }
  .top-link { right: 14px; bottom: 14px; }
}